LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

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1 year 1 month ago - 1 year 1 month ago #334753 by meister
# The Step signal for my machine is inverted. I tried to remove the inversion from the step signal, but than the Stepper don´t move at all. Does that make sense??

please check your Opto-Outputs, perhaps they are too slow for the short pulses. ?!?!

EDIT: and please add you config
Last edit: 1 year 1 month ago by meister.

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1 year 1 month ago #334979 by meister
Some Testest with the Mesa 7c81 and 400W Servos:

www.youtube.com/shorts/KLijHrYiQXw

Board: eusurplus.com/index.php?route=product/product&product_id=131 + 5Axis-BOB
Servos: www.amazon.de/dp/B0DM5V6BZ2
Spindle: Huanyang VFD via Modbus
The following user(s) said Thank You: kzali

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1 year 1 month ago - 1 year 1 month ago #335247 by choppter
Hi meister,

Really cool project! I was thinking about combining FPGA support and  LinuxCNC on an  Ultra96  board (Xilinx/AMD Ultrascale device, 4x ARM64 cores and FPGA on the same chip) for years, but had no clue how the HAL messaging works. But with your UDP example as a base it was really easy! Below is a pic of the demo system, which is the Ultra96 itself, a simple self made interface board and the CNC Shield v3.0 at the top. And of course a video . :-)When I was done I saw you had added and experimental "axi" plugin and it looks like you had the same idea like me, but it did not work for me. In case you are interested, I could send my versions of the verilog and and c-code portion and maybe you could add it in a later version of your code generation magic.

Thomas 

 
Last edit: 1 year 1 month ago by choppter.
The following user(s) said Thank You: meister

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1 year 1 month ago #335265 by meister
Wow, that's really cool. Unfortunately, I can't afford the UltraScale's ;(

I once tried using a miner board (S9) and wanted to use the ARM part only as an Ethernet bridge, but I ran into a few difficulties and didn't continue with it for the time being.

But what you've done there is amazing :)

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1 year 1 month ago #335336 by meister
LinuxCNC-RIO - Mesa 7c81 - 7.14 KHz loop - 4x400W AC-Servos

www.youtube.com/shorts/DAJdqbjLjDQ

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1 year 1 month ago #335651 by meister
Mesa 7c81 over w5500 - Ethernet on RPI4 with qtdragon_hd (3.3Khz loop)

www.youtube.com/shorts/agf3f0MJxv4

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